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Financial Instruments And Risks - Summary of Fair Value Estimation (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss ¥ 29,089,447 ¥ 31,023,211
Interest rate swap (447,443) (38,403)
Foreign currency swap 0 (25,772)
Total 29,536,890 31,035,842
Level 1 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Total 7,125,498 2,494,392
Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Total 19,957,165 27,276,217
Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Total 2,454,227 1,265,233
Asset Management Plans [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 5,009,713 8,307,773
Asset Management Plans [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 4,667,559 7,802,270
Asset Management Plans [Member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 342,154 505,503
Mutual Funds [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 7,125,498 2,486,541
Mutual Funds [Member] | Level 1 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 7,125,498 2,486,541
Trust Plans [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 3,890,549 3,052,089
Trust Plans [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 3,268,709 2,448,373
Trust Plans [Member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 621,840 603,716
Structured Deposits [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 2,406,785 6,640,977
Structured Deposits [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 2,406,785 6,640,977
Bank wealth management products [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 7,563,450 4,589,101
Bank wealth management products [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 7,563,450 4,589,101
Corporate Bonds [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 46,435 3,064,872
Corporate Bonds [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 0 3,017,849
Corporate Bonds [Member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 46,435 47,023
Private Equity Fund And Other Equity Investments [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 2,044,051 2,765,016
Private Equity Fund And Other Equity Investments [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 1,603,219 2,765,016
Private Equity Fund And Other Equity Investments [Member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 440,832  
Other debt investments [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 1,002,966 108,991
Other debt investments [Member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss 1,002,966 108,991
Stock [Member] | Listed Securities [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss   7,851
Stock [Member] | Level 1 of fair value hierarchy [member] | Listed Securities [Member]    
Disclosure of fair value measurement of assets [line items]    
Financial assets at fair value through profit or loss   7,851
Derivative instruments interest rate swap [Member]    
Disclosure of fair value measurement of assets [line items]    
Interest rate swap 222,086 38,403
Derivative instruments interest rate swap [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Interest rate swap 222,086 38,403
Derivative instruments foreign currency swap [Member]    
Disclosure of fair value measurement of assets [line items]    
Foreign currency swap 225,357 (25,772)
Derivative instruments foreign currency swap [Member] | Level 2 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Foreign currency swap ¥ 225,357 ¥ (25,772)